Dump-car.



PATBNTED MAY 22, 1906.

s. (ms. DUMPCAR. APPLICATIOK FILED MAH.3,1906.

QSHEETS-BHEET 1.

- Jperzizar 05:3.

No. 821,528. PATENTBD MAY 22, 1906. S. OTIS.

DUMP GAR.

APPLICATION FILED KARS, 1906.

2 SHEETS-SHEET 2.

osrrnn STATES PATENT OFFICE.

sPENcse ow s, 01*

on: COMPANY.

' QUMPFQAH.

Specification of Letters Paten ASSIGNOR TO NATlONAL DUMP Patented may 22, 1906.

Application filed March a, ma. Serial is. 304,057..

Toot! whom may GGH/GBTIL: Be it known that 1;, figrgggpnn OTIS, e citizen of the United States, residing {Qh cagq in the county of-Cook and State of lllliiwis, hove-invented certain new and useful Frovomentsin Dump-Cars,

owing is's eeifioatmn. I M invenion reietee pp dump-cars having} the ottom composed who ly 8i" Rartlany dumping-doors, and 01 112 eld st ii} I??? videan improved construction of d or-91mgating mechanism. M invention consists in the combinations and deteilshoreinafter described and claimed.

In the aceompsn fog drawings, Fiiure is a side elevation o n'ldnmp-oar em ody ng my invention. Fig, :2 is a transverse section on the line 2 of 'Fig. i. Fig- 3 e Q392l detail of the worm Wheel. Figs, 4,. .5; 5, 5, and 9 are detail views sili l g i-h i @Qfifill tion of the door-operating meeliamsms.

-As is Well known, dumping-oars are now constructed with bottoms formed of a series of; dumping-doors which are opened positively or are permitted to open by grav ty when released. It, is customary also to provide an operating mechanism whereby" the doors may be raised to their closed position.

-80 far as I am aware it has hitherto been customary to raise all the doors on one side of the car simultaneously. Owing to the number of doors and the weight thereof this places a great strain upon the oierating .the car, having a bottom mechanism and increases the labor 0 closing the doors. I have devised :3. means whereby the doors may be closed successively one after the other, so that the operating mechanism carries the weight of one door at a time only.

In the drawings, (1' represents the body of K composed of a series of dumping-doorsb. There mar he as nmnyof' these dumping-doors as is esii'ed; but for illustration of my invention I have shown a car having three doors on escirside of the center sill. Mounted on the sides of I ,the car is a. series of pulleys c, c, and c", one for each door, and chorus (I connect these pullevs to lifting-rodse, cured to the doors. It will he 1O1L(lll 'llll(.l(lstood t-ha-t when the pulleys are turned the doors may be raised 01' lowered, according lo .thedirection of inoi'emoutof the pulleys.

These pulleys are mounted upon short shafts Imof which the fol" which are rigidly seclearly shown in Fig. 1, the ethos 71: being ettaohed to the sides of the carih any suithle manner. Extending lon itudinally of thesis-reg}; sg tehly journal on the side thereof is on operating sheft 5, end mounted upon the short shsftswhichcarrythe pulleys are mutilated ear -,Wheels jif y end fF. These gear-whee s are loosely mounted upon the'shafts and are provided g, journsled in the beeri'nifraines l", is

V with pins j, rrhich enter recesses m the pulley? *heels. 5

' ,is' shown in Fig. 4, the pulley attached to the fiist. design one git the left in Fig. 1 is provided with esmeil periorstigg of the diemeter of the pinf. it will be apparent, therefore, that whenever the mutilated oar wheel f is rotated thepulle 'will move t emwith. The pulleys e an o are pr'ox-ided with elongated slots for the reception of the insf on the nutileted gearsf'f, so that a fostinotioii is presided at these points The sheft- .h is presi ed with engaging the severzhmutilnted Ling-i ;ieelsf. v It will now be understood .tlg'g t when the doors are in open )osition the gears hrs in the position indicate in Figs- 4 to'9, inclusiye. When the s} aft 1; turned the first door sit left will Le resell, owi g he m rit of the ping; o he grorre'l s .l f wi h the recess is m .nll r e5: je t Hem time the inf in t. seer-wh el sea fi will Li's-V's in their slots 5* an e", resgeetlveh'f These Si n are so propp llw di. .iwhen the first'door is clos d h pin fi n t is gear: wheel f will contact with the lower. end of tlie slot 0 in the ulley e.- an the arms. door will begin to'close, Th $1M n 1.1M? pulley cis 0 such length that whenthe sec.- ond door has been closed the pm if of 118 2 will contact with the end 0 the slot se e, thus olosm the third and last door.

the gear 3 passes The tootl e portion of beyond the and of the worm i. when the first door is fully; closed and the hast toot-h will bear against the end of the norm, thus lLOlil'."

ilitlosmi position The some Any sui able the shaft 1;. squared end ing this door is true of the gear-wheel j" means may he used for turning l have shown it provided with a n for the reception of IL wrem-h', but it will he with a series of dumping-doors which may stres be raised one at a time in succession. advantages of this construction are sulfimeans for closing The cientlv obvious and have, in fact, been mentioned before.

I do not desire tobe understood as limitingmy claims to the exact construction shown. I believe I am the first to provide the doors of a dump-car successively and intend to be understood as claiming any equivalent meansrfor effecting this result 1 I claim- 1. A dump-car havin a bottom comprising a series of dumpingoors, and means for successively closin the doors.

2. A du n car having a bottom comprising a series of dumping-doors, a door-raising device connected to each door, means for opera/ting the door-raising devices, and means for successively engaging the operating means with the door-raising devices.

3. A dump-car having a bottom comprisin a series of dum ing-doors, pulleys Journe ed on the car-ho y, means connecting the doors with the pulleys, and means for operating the pulleys successively to close the doors.

4. A dump-car havin a bottom compris ing a series ofdumpingoors, a door-raising device connected to each door, a common operating means for the door-raising devices, and means for successively enga mg the common operating means with t e doorraising devices.

SPENCER OTIS. Witnesses:

ANNIE C. COURTEXAY, ANNA L. SAVOIE. 

